Dennis M A, Drose J A, Pretorius D H, Manco-Johnson M L
Radiology. 1985 Jun;155(3):751-4. doi: 10.1148/radiology.155.3.3890002.
An erroneous diagnosis of spina bifida may be made using obstetric ultrasound (US) if the examiner is unfamiliar with normal fetal sacral anatomy or the ways in which artifacts can affect the appearance of the normal lumbosacral posterior elements. Two normal neonates who appeared to have sacral dysraphism in utero are described and compared with US and CT studies of an anatomically normal 34-week cadaver specimen. In the event of transducer angulation, lumbosacral spina bifida must be diagnosed with the utmost caution if an associated sac or mass is not present.
如果检查者不熟悉正常胎儿骶骨解剖结构或伪像影响正常腰骶部后部结构外观的方式，使用产科超声（US）可能会对脊柱裂做出错误诊断。本文描述了两名在子宫内看似有骶骨发育不良的正常新生儿，并将其与一具34周解剖学正常的尸体标本的超声和CT研究结果进行了比较。如果存在换能器角度问题，在没有相关囊肿或肿块的情况下，诊断腰骶部脊柱裂必须极其谨慎。
